CN103350124B - A kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas - Google Patents

A kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas Download PDF

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Publication number
CN103350124B
CN103350124B CN201310234431.XA CN201310234431A CN103350124B CN 103350124 B CN103350124 B CN 103350124B CN 201310234431 A CN201310234431 A CN 201310234431A CN 103350124 B CN103350124 B CN 103350124B
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welding
cladding
basic unit
masonry joint
vertical masonry
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CN103350124A (en
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毕宗岳
刘海璋
张万鹏
杨军
张锦刚
牛辉
张君
黄晓辉
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China National Petroleum Corp
Baoji Petroleum Steel Pipe Co Ltd
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Baoji Petroleum Steel Pipe Co Ltd
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Abstract

A kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas, corrosion resistant alloy by cladding, basic unit is carbon steel and is shaped to vertical masonry joint tubulose with the bi-metal composite panel that " blast+hot rolling " mode combines by JCOE moulding process, then adopts welding procedure namely straight seam welding to be can be made into cladding at interior basic unit vertical masonry joint bimetallic composite welded pipe outside.Present invention process is simple, can realize suitability for industrialized production, while guarantee cladding corrosion resistance, greatly reduces product cost.

Description

A kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas
Technical field
The invention belongs to composite welded pipe manufacturing technology field, be specifically related to a kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas.
Background technology
H in oil transportation, gas pipeline 2s, CO 2the homogeneous corrosion that pipeline can be caused serious, spot corrosion, sulfide-stress cracking and hydrogen induced cracking (HIC), thus cause inefficacy and the accident of conveyance conduit, corrosive pipeline environment proposes higher, more harsh corrosion-resistant requirement to conveyance conduit, adopts corrosion-resistant multiple tube to be one of most economical mode.The liner two-phase stainless steel composite steel pipe that current domestic production uses is mostly a kind of composite steel tube of mechanical bond, because carbon steel base layer and stainless steel cladding are a kind of mechanical bond states, this just makes it apply to be very limited, the pipe pipe bimetal composite multiple tube of mechanical bond, owing to there is gap between base tube and bushing pipe, especially at high temperature, it will cause internal coated layer unstability because expansion coefficient difference between carbon steel and stainless steel and interlayer there is gas, bubbling, when local corrosion appears in bushing pipe, corrosive medium can infiltrate the gap between base tube and bushing pipe, accelerate corrosive pipeline, the final security affecting pipeline.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas, technique is simple, can realize industrialized batch production.
The technical solution used in the present invention is: a kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas, corrosion resistant alloy by cladding, basic unit is carbon steel and is shaped to vertical masonry joint tubulose with the bi-metal composite panel that " blast+hot rolling " mode combines by JCOE moulding process, then adopts welding procedure namely straight seam welding to be can be made into cladding at interior basic unit vertical masonry joint bimetallic composite welded pipe outside.
Described cladding is stainless steel materials 316L, 304L, 2205, or titanium or titanium alloy sheet material, and thickness is 1-2mm; Described basic unit is X52, X60, X65, X70 pipe line steel sheet material.
Described welding procedure is: adopt V-type compound bevel, bevel angle b is 20-30 °, and groove does not extend to stainless steel flaggy, makes the monolateral boss leaving wide 2-3mm of cladding; The method of TIG weldering and the technique of single face welding and double face shaping is first adopted to carry out the welding of cladding, then the method welding transition layer adopting TIG to weld, finally adopt the method welding basic unit of MAG weldering or SAW weldering.
Described welding procedure is: adopt Y type groove, bevel angle c is 80-90 °, the root face that basic unit leaves, and root face height is less than groundwork thickness 2-3mm, first adopts the method welding basic unit of plasma weldering, then adopts method welding transition layer and the cladding of TIG.
Described welding procedure is: adopt X-type groove, basic unit face bevel angle d is 60-70 ° and leaves 1-2mm root face, cladding face bevel angle e is 80-90 °, first adopt the method welding transition layer of TIG weldering, the method welding cladding adopting TIG to weld again, finally adopts the method welding basic unit of MAG weldering or SAW weldering.
The advantage that the present invention has and effect:
1, the ply-metal that " blast+hot rolling " technique is made is manufactured vertical masonry joint bimetallic composite welded pipe by the method for shaping rear welding by the present invention, and technique is simple, while guarantee cladding corrosion resistance, greatly reduces product cost.
2, the present invention is by adopting rational welding procedure and rational welding sequence, basic unit's carbon steel composition is prevented to be transitioned into cladding, avoiding cladding due to welding is heated and the decay resistance that causes declines, through testing its mechanical property and decay resistance all reaches requirement, be applicable to industrialized mass production.
Accompanying drawing explanation
Fig. 1 is V-type compound bevel structural representation of the present invention,
Fig. 2 is Y type compound bevel structural representation of the present invention,
Fig. 3 is X-type compound bevel structural representation of the present invention.
Detailed description of the invention:
Adopt prior art, manufacturing cladding 2 in " blast+hot rolling " mode is corrosion resistant alloys, basic unit 1 is the bi-metal composite panel of carbon steel, then its corrosion resistant alloy one is faced up, carbon steel one faces down, sheet material is aligned, surface treatment, and to sheet material both sides according to different welding procedures, process different bevel for weldings, adopt JCOE moulding process that composite board is shaped to vertical masonry joint tubulose, then adopt welding procedure to be welded by vertical masonry joint 3 namely to can be made into cladding at interior basic unit vertical masonry joint bimetallic composite welded pipe outside.
Described cladding is stainless steel materials 316L, 304L, 2205, or titanium or titanium alloy sheet material, and thickness is 1-2mm; Described basic unit is X52, X60, X65, X70 pipe line steel sheet material.
Embodiment 1: be raw material (pure titanium TA1 thickness 2 mm, X 65 thickness 10 mm) with pure titanium TA1/X65 ply-metal, adopts the welding procedure of V-type compound bevel to manufacture vertical masonry joint bimetallic composite welded pipe.Described bevel angle is 30 °, and after Pipe forming, stainless steel cladding weld gap is 1mm, and groove does not extend to stainless steel flaggy, and make cladding weld seam both sides respectively leave the boss of wide 3mm, when preventing cladding from welding, basic unit's carbon steel composition is transitioned into cladding.First adopt the technique weldable steel cladding of TIG welding method, pure titanium welding wire TA1, single face welding and double face shaping; Adopt TIG welding method, pure Cu and pure V welding wire welding transition layer again; Finally adopt MAG or SAW welding method welding basic unit, wlding is H08Mn 2siA, MAG welding wire diameter is 1.2mm, and SAW welding wire diameter is 3.2mm.Concrete welding condition is as shown in the table:
Welded tube mechanical property test result: tensile strength 710MPa, 0 DEG C of impact flexibility weld seam is 125J, and heat affected area is 192J, the positive recurvation of weld seam 180 degree of flawlesses.Corrosion test is undertaken by standard GB/T 4334-2008, seethes with excitement 72 hours in sulfuric acid-copper-bath, bending flawless.
Embodiment 2: be raw material (wherein 316L corrosion resistant plate thickness 2 mm, X 65 Pipeline Steel Plate thickness 10 mm) with 316L/X 65 ply-metal, adopts the welding procedure of Y type groove to manufacture vertical masonry joint bimetallic composite welded pipe.Groove one side angle is 45 °, and basic unit leaves the root face of 7mm, and Pipe forming first adopts the method welding basic unit of plasma weldering later, then uses method welding transition layer and the cladding of TIG.Cladding adopts ER316L welding wire, and transition zone adopts ER309 welding wire, and basic unit's wlding is H08Mn 2siA, gage of wire is 1.2mm.Concrete welding condition is as shown in the table:
Welded tube mechanical property test result: tensile strength 680MPa, 0 DEG C of impact flexibility weld seam is 110J, and heat affected area is 230J, the positive recurvation of weld seam 180 degree of flawlesses.Corrosion test is undertaken by standard GB/T 4334-2008, seethes with excitement 72 hours in sulfuric acid-copper-bath, bending flawless.
Embodiment 3: with 2205/X70 ply-metal for raw material (wherein 2205 corrosion resistant plate thickness 2mm, X 70 Pipeline Steel Plate thickness 10 mm), adopts the welding procedure of X-type groove to manufacture vertical masonry joint bimetallic composite welded pipe.Basic unit's one side angle of preparation is 35 °, cladding single groove angle is 45 °, basic unit leaves 1mm root face near cladding place, Pipe forming is later first with the method welding transition layer of TIG weldering, welding wire is ER309, then welds cladding by the method for TIG weldering, and welding wire is ER2209, finally weld basic unit by the method for MAG weldering or SAW weldering, welding wire is H08Mn 2siA.
Welded tube mechanical property test result: tensile strength 655MPa, 0 DEG C of impact flexibility weld seam is 105J, and heat affected area is 210J, the positive recurvation of weld seam 180 degree of flawlesses.Corrosion test is undertaken by standard GB/T 4334-2008, seethes with excitement 72 hours in sulfuric acid-copper-bath, bending flawless.
Above-described embodiment, just preferred embodiment of the present invention, is not used for limiting the scope of the present invention, therefore all equivalent variations done with content described in the claims in the present invention, all should be included within the claims in the present invention scope.

Claims (5)

1. the manufacture method of the vertical masonry joint bimetallic composite welded pipe of a transfer oil natural gas, it is characterized in that: be corrosion resistant alloy by cladding, basic unit is carbon steel and after processing different bevel for weldings with bi-metal composite panel two longitudinal edge that " blast+hot rolling " mode combines according to different welding procedures, be shaped to vertical masonry joint tubulose by JCOE moulding process, then adopt the welding procedure of cladding, transition zone, basic unit being welded respectively namely straight seam welding to be can be made into cladding at interior basic unit vertical masonry joint bimetallic composite welded pipe outside.
2. according to the manufacture method of the vertical masonry joint bimetallic composite welded pipe of a kind of transfer oil natural gas according to claim 1, it is characterized in that: described cladding is stainless steel materials 316L, 304L, 2205, or titanium or titanium alloy sheet material, and thickness is 1-2mm; Described basic unit is X52, X60, X65, X70 pipe line steel sheet material.
3. the manufacture method of the vertical masonry joint bimetallic composite welded pipe of a kind of transfer oil natural gas according to claim 1 and 2, it is characterized in that described welding procedure is: adopt V-type compound bevel, bevel angle b is 20-30 °, and groove does not extend to cladding, make the monolateral boss leaving wide 2-3mm of cladding; The method of TIG weldering and the technique of single face welding and double face shaping is first adopted to carry out the welding of cladding, then the method welding transition layer adopting TIG to weld, finally adopt the method welding basic unit of MAG weldering or SAW weldering.
4. the manufacture method of the vertical masonry joint bimetallic composite welded pipe of a kind of transfer oil natural gas according to claim 1 and 2, it is characterized in that described welding procedure is: adopt Y type groove, bevel angle c is 80-90 °, the root face that basic unit leaves, root face height is less than groundwork thickness 2-3mm, first adopt the method welding basic unit of plasma weldering, then adopt method welding transition layer and the cladding of TIG.
5. the manufacture method of the vertical masonry joint bimetallic composite welded pipe of a kind of transfer oil natural gas according to claim 1 and 2, it is characterized in that described welding procedure is: adopt X-type groove, basic unit face bevel angle d is 60-70 ° and leaves 1-2mm root face, cladding face bevel angle e is 80-90 °, first adopt the method welding transition layer of TIG weldering, the method welding cladding adopting TIG to weld again, finally adopts the method welding basic unit of MAG weldering or SAW weldering.
CN201310234431.XA 2013-06-09 2013-06-09 A kind of manufacture method of vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas Active CN103350124B (en)

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CN103706928B (en) * 2013-12-25 2016-06-01 江苏玉龙钢管股份有限公司 The straight seam buried arc welding method of corrosion resistance metallurgical composite bimetal steel tube
CN104455761A (en) * 2014-11-21 2015-03-25 宝鸡石油钢管有限责任公司 Nickel-based alloy and carbon steel metallurgical bonding composite welded tube and manufacturing method thereof
CN105014207B (en) * 2015-07-08 2017-04-12 宝鸡石油钢管有限责任公司 Vanadium/copper solid solution transition connection-based welding process for titanium-containing metal layer/pipeline steel layer composite board
CN106425104B (en) * 2016-12-05 2018-06-29 西南交通大学 A kind of titanium steel multiple tube single face welding and double face shaping welding method
KR101752733B1 (en) * 2017-01-19 2017-06-30 주식회사 에코파이프 Manufacturing method of double wall pipe
CN108568462A (en) * 2017-03-10 2018-09-25 中海油能源发展股份有限公司 A kind of compound straight-seam pipes of bimetal metallurgy and its manufacturing method
CN107150174B (en) * 2017-06-09 2019-03-01 西安交通大学 The method for improving coating and base's bond strength in mechanical bond type composite bimetal pipe
CN107755980B (en) * 2017-10-20 2019-07-30 中国石油天然气集团公司 A kind of manufacturing method of 2205/X65 bimetal metallurgy composite-curve
CN108705200B (en) * 2018-06-07 2020-09-04 中国石油天然气集团有限公司 Welding method of stainless steel lining composite board
CN110216357A (en) * 2019-05-28 2019-09-10 中钢不锈钢管业科技山西有限公司 A kind of manufacturing method of bimetallic composite welded pipe
CN110773891B (en) * 2019-11-05 2021-07-23 中国石油天然气集团有限公司 Welding method of stainless steel composite plate
CN112475787A (en) * 2020-10-22 2021-03-12 陕西铁路工程职业技术学院 Preparation method of large-wall-thickness stainless steel/carbon steel laminated structure composite pipe

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Effective date of registration: 20170607

Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No.

Co-patentee after: Baoji Petroleum Steel Pipe Co., Ltd.

Patentee after: China National Petroleum Corporation

Address before: 721006, 10 Tan Lu, Weibin District, Shaanxi, Baoji

Patentee before: Baoji Petroleum Steel Pipe Co., Ltd.